Displaydata 120-0123 Dynamic Communicator User Manual
ZBD Displays Ltd Dynamic Communicator
User manual
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Displaydata Ltd, Century Court, Millennium Way, Bracknell, Berkshire, RG12 2XT
Displaydata
Dynamic Communicator
Installation Guide
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2 Dynamic Communicator Installation Guide
Displaydata
Table of Contents
Table of Contents ........................................................................................................................ 2
GNU Software License Information ............................................................................................ 3
Dynamic Communicator ........................................................................................................... 3
Check Package Contents ........................................................................................................................ 3
Connecting the Dynamic Communicator .............................................................................................. 4
Turning the unit on ..................................................................................................................................... 4
Regulatory Information ............................................................................................................... 5
Safety Notices ...................................................................................................................................................5
Radio Transmission Regulatory Information ...................................................................................................5
USA - Federal Communication Commission Interference Statement .........................................................5
Canada – Industry Canada Warning Statement ..........................................................................................5
Europe - CE Declaration of Conformity .........................................................................................................6
Warranty and Support Services ................................................................................................. 7
Technical Support ...................................................................................................................................... 7
Return Merchandise Authorization .......................................................................................................... 7
One Year Limited Warranty ...................................................................................................................... 7
WEEE Statement (Waste, Electrical and Electronic Equipment) ........................................................... 8
RoHS - Restriction of Hazardous Substances .......................................................................................... 8
GNU GENERAL PUBLIC LICENSE .................................................................................................. 9
GNU GENERAL PUBLIC LICENSE ................................................................................................ 11
GNU LESSER GENERAL PUBLIC LICENSE .................................................................................... 13
GNU LESSER GENERAL PUBLIC LICENSE .................................................................................... 16
Document Properties ................................................................................................................ 20
Change History ......................................................................................................................... 20
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Dynamic Communicator Installation Guide 3
Displaydata
Regulatory Information
GNU Software License Information
The software included in this product contains third-party code licensed under various
open licences. For full details please see
http://www.displaydata.com/opensource/ethernetcommunicator
The software included in this product contains copyrighted software that is licensed
under the GPLv2, LGPLv2.1, GPLv3 or LGPLv3. Copies of these licences are included in
this document at the end of this section. You may obtain the complete Corresponding
Source code from us for a period of three years after our last shipment of this product
by contacting us at the below address:
Open Source Licence Compliance Officer
Displaydata Ltd
Century Court
Millennium Way
Bracknell
Berkshire
RG12 2XT
United Kingdom
You may also find a copy of the source at
http://www.displaydata.com/opensource/ethernetcommunicator
This offer is valid to anyone in receipt of this information.
Dynamic Communicator
The Communicator transmits the image to the correct displays and controls the status
of the Display network.
Installation of the software/drivers is covered in documentation available from
support@displaydata.com.
Check Package Contents
Dynamic Communicator
Note:
All packaging materials are recyclable.
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4 Dynamic Communicator Installation Guide
Dynamic Communicator Displaydata Table of Contents
Mounting Installation
The dynamic communicator should be vertically mounted with the antennas pointing
downwards.
An installation template to aid mounting can be downloaded from the Displaydata
Support website.
Connecting the Dynamic Communicator
1. Ethernet Port
2. DC Input
3. Factory reset - DO NOT USE. Warning this will erase user data!
4. SD Card slot - DO NOT USE. Reserved for future expansion.
5. RF Antennas – note orientation for optimum performance.
6. Power Status LED – indicates green when unit is correctly powered.
Turning the unit on
Option 1: Power over Ethernet (IEEE 802.3af)
Option 2: DC Power Supply (Sold Separately)
Important:
Connect network cable first, then power supply.
PSU must be rated as follows: -
Output: 5.0V/1.2A or 5.2V/1.2A
4
2
3
1
Displaydata
5
6
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Dynamic Communicator Installation Guide 5
Displaydata
Regulatory Information
Regulatory Information
Safety Notices
Take some time to read through the safety notices before installing the Dynamic
Communicator. Please observe all safety markings and instructions when using this
product.
Radio Transmission Regulatory Information
The Dynamic Communicator and the Display (epop) label have been tested to comply
with the following standards.
This product must be installed and used in strict accordance with the instructions given
in the user documentation. The Dynamic Communicator and epop label complies with
the following radio frequency and safety standards:
USA - Federal Communication Commission Interference Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment. End users must follow the specific operating instructions for satisfying RF
exposure compliance. This transmitter must not be co-located or operating in
conjunction with any other antenna or transmitter.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause
undesired operation.
Canada – Industry Canada Warning Statement
English
"Under Industry Canada regulations, this radio transmitter may only operate using an
antenna of a type and maximum (or lesser) gain approved for the transmitter by
Industry Canada.
To reduce potential radio interference to other users, the antenna type and its gain
should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not
more than that necessary for successful communication."
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6 Dynamic Communicator Installation Guide
Warranty and Support Services Multiple Communicator Sites
"This device complies with Industry Canada licence-exempt RSS standard(s). Operation
is subject to the following two conditions: (1) this device may not cause interference,
and (2) this device must accept any interference, including interference that may
cause undesired operation of the device."
Français
"Conformément à la réglementation d'Industrie Canada, le présent émetteur radio
peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur)
approuvé pour l'émetteur par Industrie Canada.
Dans le but de réduire les risques de brouillage radioélectrique à l'intention des autres
utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance
isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à
l'établissement d'une communication satisfaisante."
"Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux
appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions
suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de
l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est
susceptible d'en compromettre le fonctionnement."
Europe - CE Declaration of Conformity
We, Displaydata Limited of Century Court, Millennium Way, Bracknell, Berkshire RG12
2XT United Kingdom, declare under our sole responsibility that the Displaydata Dynamic
Communicator and epop, to which this declaration relates is in conformity with the
following standards and/or other normative documents:
EN300 220-2 V2.4.1
EN300 220-1 V2.4.1
EN301 489-1 V1.9.2
EN301 489-3 V1.6.1
EN60950-1:2006/A12:2011
We, Displaydata Limited, hereby declare that this product is in compliance with the
essential requirements and other relevant provisions of Directive 1999/5/EC.
This product can be used in but is not restricted to the following countries:
UK, Germany, Austria, Belgium, Switzerland, Netherlands, Luxembourg, Italy, France,
Ireland, Spain, Portugal, Sweden, Norway, Denmark, Finland, Czech Republic, Hungary,
and Greece.
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Dynamic Communicator Installation Guide 7
Displaydata Warranty and Support Services
Warranty and Support Services
Technical Support
Contact your authorized partner or reseller for support on this product.
There are no user-replaceable parts on this product.
Return Merchandise Authorization
Please contact our support center for an RMA number before sending your product
to the repair address. Product sent to the repair address without an RMA number will
be returned unopened.
In Europe: Displaydata Limited, Century Court, Millennium Way, Bracknell, Berkshire
RG12 2XT United Kingdom
Email: support@displaydata.com
Web: www.displaydata.com
One Year Limited Warranty
This device is guaranteed against manufacturing defects for one full year from the
original date of purchase.
This warranty is valid at the time of purchase and is non-transferable.
This warranty must be presented to the service facility before any repair can be
made.
Sales slip or other authentic evidence is required to validate warranty.
This product should be installed and used in accordance with the instructions
detailed in this user guide and serviced at an approved Displaydata Service Centre.
Failure to comply with these conditions may render the warranty void.
Damage caused by accident, misuse, abuse, improper storage, and/or uncertified
repairs is not covered by this warranty.
All mail or transportation costs including insurance are at the expense of the owner.
Do not send any product to service center for warranty without a RMA (Return
Merchandise Authorization) and proof of purchase. Ensure a trackable method of
delivery is used (keep tracking number).
Warranty is valid only in the country of purchase.
We assume no liability that may result directly or indirectly from the use or misuse of
these products.
This warranty will be voided if the device is tampered with or improperly serviced
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8 Ethernet Communicator Installation Guide
GNU GENERAL PUBLIC LICENSE Multiple Communicator Sites
WEEE Statement (Waste, Electrical and Electronic
Equipment)
The WEEE directive places an obligation on all EU-based manufacturers and
importers to take-back electronic products at the end of their useful life.
Displaydata Limited accepts its responsibility to finance the cost of treatment and
recovery of redundant WEEE in accordance with the specific WEEE recycling
requirements.
The symbol (shown) indicates that this product must NOT be disposed of with other
waste. Instead it is the user’s responsibility to dispose of their waste electrical and
electronic equipment by handing it over to an approved reprocessor, or by
returning it to Displaydata for reprocessing. For more information about where you
can send your waste equipment for recycling, please contact your local city office
or Displaydata support offices.
Displaydata has applied to become a member of a compliance scheme.
Our Producer Registration Number is WEE/DB0248QZ
RoHS - Restriction of Hazardous Substances
Displaydata is fully aware of the new legislation and has taken steps to ensure that
all products are RoHS Compliant and as a "Producer" of product ensures that we
meet the new regulations.
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Dynamic Communicator Installation Guide 9
Displaydata GNU GENERAL PUBLIC LICENSE
GNU GENERAL PUBLIC LICENSE v2
Version 2, June 1991, Copyright (C) 1989, 1991 Free Software Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to
guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the
Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by
the GNU Lesser General Public License instead.) You can apply it to your programs, too.
When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to
distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the
software or use pieces of it in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to
certain responsibilities for you if you distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure
that they, too, receive or can get the source code. And you must show them these terms so they know their rights.
We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify
the software.
Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is
modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will
not reflect on the original authors' reputations.
Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain
patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not
licensed at all.
The precise terms and conditions for copying, distribution and modification follow.
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this
General Public License. The "Program", below, refers to any such program or work, and a "work based on the Program" means either the Program or any
derivative work under copyright law: that is to say, a work containing the Program or a portion of it, either verbatim or with modifications and/or translated into
another language. (Hereinafter, translation is included without limitation in the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running the Program is not
restricted, and the output from the Program is covered only if its contents constitute a work based on the Program (independent of having been made by
running the Program). Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and
appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer to this License
and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program. You may charge
a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Program, and copy and distribute such
modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part
thereof, to be licensed as a whole at no charge to all third parties under the terms of this License.
c) If the modified program normally reads commands interactively when run, you must cause it, when started running for such interactive
use in the most ordinary way, to print or display an announcement including an appropriate copyright notice and a notice that there is
no warranty (or else, saying that you provide a warranty) and that users may redistribute the program under these conditions, and telling
the user how to view a copy of this License. (Exception: if the Program itself is interactive but does not normally print such an
announcement, your work based on the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If identifiable sections of that work are not derived from the Program, and
can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you distribute the same sections as part of a whole which is a work
based on the Program, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to
the entire whole, and thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest your rights to work written entirely by you; rather, th e intent is to exercise
the right to control the distribution of derivative or collective works based on the Program.
In addition, mere aggregation of another work not based on the Program with the Program (or with a work based on the Program) on a
volume of a storage or distribution medium does not bring the other work under the scope of this License.
3. You may copy and distribute the Program (or a work based on it, under Section 2) in object code or executable form under the terms of Sections 1
and 2 above provided that you also do one of the following:
a) a) Accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of
Sections 1 and 2 above on a medium customarily used for software interchange; or,
b) b) Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more than your cost of
physically performing source distribution, a complete machine-readable copy of the corresponding source code, to be distributed
under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or,
c) c) Accompany it with the information you received as to the offer to distribute corresponding source code. (This alternative is allowed
only for non-commercial distribution and only if you received the program in object code or executable form with such an offer, in
accord with Subsection b above.)
The source code for a work means the preferred form of the work for making modifications to it. For an executable work, complete
source code means all the source code for all modules it contains, plus any associated interface definition files, plus the scripts used to
control compilation and installation of the executable. However, as a special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component itself accompanies the executable.
If distribution of executable or object code is made by offering access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
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10 Dynamic Communicator Installation Guide
GNU GENERAL PUBLIC LICENSE Multiple Communicator Sites
4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this License. Any attempt otherwise to copy,
modify, sublicense or distribute the Program is void, and will automatically terminate your rights under this License. However, parties who have
received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance.
5. You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or distribute the
Program or its derivative works. These actions are prohibited by law if you do not accept this License. Therefore, by modifying or distributing the
Program (or any work based on the Program), you indicate your acceptance of this License to do so, and all its terms and conditions for copying,
distributing or modifying the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the original licensor
to copy, distribute or modify the Program subject to these terms and conditions. You may not impose any further restrictions on the recipients'
exercise of the rights granted herein. You are not responsible for enforcing compliance by third parties to this License.
7. If, as a consequence of a court judgment or allegation of patent infringement or for any other reason (not limited to patent issues), conditions are
imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the
conditions of this License. If you cannot distribute so as to satisfy simultaneously your obligations under this License and any other pertinent
obligations, then as a consequence you may not distribute the Program at all. For example, if a patent license would not permit royalty-free
redistribution of the Program by all those who receive copies directly or indirectly through you, then the only way you could satisfy both it and this
License would be to refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under any particular circumstance, the balance of the section is intended to apply and
the section as a whole is intended to apply in other circumstances.
It is not the purpose of this section to induce you to infringe any patents or other property right claims or to contest validity of any such claims; this
section has the sole purpose of protecting the integrity of the free software distribution system, which is implemented by public license practices.
Many people have made generous contributions to the wide range of software distributed through that system in reliance on consistent application
of that system; it is up to the author/donor to decide if he or she is willing to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright
holder who places the Program under this License may add an explicit geographical distribution limitation excluding those countries, so that
distribution is permitted only in or among countries not thus excluded. In such case, this License incorporates the limitation as if written in the body of
this License.
9. The Free Software Foundation may publish revised and/or new versions of the General Public License from time to time. Such new versions will be
similar in spirit to the present version, but may differ in detail to address new problems or concerns.
Each version is given a distinguishing version number. If the Program specifies a version number of this License which applies to it and "any later
version", you have the option of following the terms and conditions either of that version or of any later version published by the Free Software
Foundation. If the Program does not specify a version number of this License, you may choose any version ever published by the Free Software
Foundation.
10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for
permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation; we sometimes make
exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our free software and of promoting
the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY
MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL,
INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH
ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which
everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively convey the exclusion of
warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found.
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street,
Fifth Floor, Boston, MA 02110-1301, USA.
If the program is interactive, make it output a short notice like this when it starts in an interactive mode:
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain
conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be
called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a
sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker.
signature of Ty Coon,
1 April 1989 Ty Coon, President of Vice
This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it
more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this
License.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL
DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE
OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
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Dynamic Communicator Installation Guide 11
Displaydata GNU GENERAL PUBLIC LICENSE
END OF TERMS AND CONDITIONS.
GNU GENERAL PUBLIC LICENSE v3
Version 3, 29 June 2007. Copyright © 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
Preamble
The GNU General Public License is a free, copyleft license for software and other kinds of works.
The licenses for most software and other practical works are designed to take away your freedom to share and change the works. By contrast, the GNU General
Public License is intended to guarantee your freedom to share and change all versions of a program--to make sure it remains free software for all its users. We,
the Free Software Foundation, use the GNU General Public License for most of our software; it applies also to any other work released this way by its authors. You
can apply it to your programs, too.
When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to
distribute copies of free software (and charge for them if you wish), that you receive source code or can get it if you want it, that you can change the software
or use pieces of it in new free programs, and that you know you can do these things.
To protect your rights, we need to prevent others from denying you these rights or asking you to surrender the rights. Therefore, you have certain responsibilities if
you distribute copies of the software, or if you modify it: responsibilities to respect the freedom of others.
For example, if you distribute copies of such a program, whether gratis or for a fee, you must pass on to the recipients the same freedoms that you received. You
must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights.
Developers that use the GNU GPL protect your rights with two steps: (1) assert copyright on the software, and (2) offer you this License giving you legal permission
to copy, distribute and/or modify it.
For the developers' and authors' protection, the GPL clearly explains that there is no warranty for this free software. For both users' and authors' sake, the GPL
requires that modified versions be marked as changed, so that their problems will not be attributed erroneously to authors of previous versions.
Some devices are designed to deny users access to install or run modified versions of the software inside them, although the manufacturer can do so. This is
fundamentally incompatible with the aim of protecting users' freedom to change the software. The systematic pattern of such abuse occurs in the area of
products for individuals to use, which is precisely where it is most unacceptable. Therefore, we have designed this version of the GPL to prohibit the practice for
those products. If such problems arise substantially in other domains, we stand ready to extend this provision to those domains in future versions of the GPL, as
needed to protect the freedom of users.
Finally, every program is threatened constantly by software patents. States should not allow patents to restrict development and use of software on general-
purpose computers, but in those that do, we wish to avoid the special danger that patents applied to a free program could make it effectively proprietary. To
prevent this, the GPL assures that patents cannot be used to render the program non-free.
The precise terms and conditions for copying, distribution and modification follow.
TERMS AND CONDITIONS
Definitions.
“This License” refers to version 3 of the GNU General Public License.
“Copyright” also means copyright-like laws that apply to other kinds of works, such as semiconductor masks.
“The Program” refers to any copyrightable work licensed under this License. Each licensee is addressed as “you”. “Licensees” and “recipients” may be
individuals or organizations.
To “modify” a work means to copy from or adapt all or part of the work in a fashion requiring copyright permission, other than the making of an exact copy. The
resulting work is called a “modified version” of the earlier work or a work “based on” the earlier work.
A “covered work” means either the unmodified Program or a work based on the Program.
To “propagate” a work means to do anything with it that, without permission, would make you directly or secondarily liable for infringement under applicable
copyright law, except executing it on a computer or modifying a private copy. Propagation includes copying, distribution (with or without modification), making
available to the public, and in some countries other activities as well.
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16 Dynamic Communicator Installation Guide
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Dynamic Communicator Installation Guide 17
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18 Ethernet Communicator Installation Guide
Table of Contents Multiple Communicator Sites
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How to Apply These Terms to Your New Programs.
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19 Dynamic Communicator Installation Guide
Error! Reference source not found. Displaydata
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Dynamic Communicator Installation Guide 20
Displaydata Document Properties
Document Properties
This document is intended for limited circulation.
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Change History
The information contained in this document is subject to change without written
notice and should not be construed as a commitment by Displaydata Ltd. unless
such commitment is expressly given in a covering document.
Date
Rev
Description
Author(s)
18th April 2014
V 1.0
New document format and
update of Branding and all
diagrams
Robert Sweetman
8th May 2014
V 2.0
Modifications for Dynamic
Communicator
Robert Sweetman